User Acceptance Tests: Updated Production Phased Launch Schedule: Our Market Operations and Member Experience teams are here for any of your questions. MEMX Market Operations mops@memx.com 1-833-415-6677 MEMX Member Experience memberx@memx.com 1-833-415-6369
Month: August 2023
Date Filed: September 6, 2023 Description: Proposed rule change to amend the Short Term Option Series Program in Rule 19.5, Interpretation and Policy .05, and amend the definition of Short Term Option Series in Rule 16.1.
Date Filed: September 6, 2023 Description: Proposal to amend Rule 19.5, Interpretation and Policy .05(f) to account for conflicts between different provisions within the Short Term Option Series Rules, extend current $0.50 strike price intervals in equity options to short term options with strike prices less than $100, and make other clarifying changes.
Effective Friday, September 1, 2023, MEMX will be implementing the following changes to transaction fees, subject to filing with the SEC: Changes are reflected in bold text below. Sub-Dollar Rebate Tier Tier Rebate* Required Criteria Tier 1 (0.15% of total dollar value) Member has a Sub-Dollar ADAV ≥ 5,000,000 shares * Rebate would apply instead […]
On February 8, 2023, MEMX published Regulatory Notice 23-01: Mandatory Participation in Regulation SCI Disaster Recovery Testing. In coordination with other market centers as part of SIFMA BCP testing, and in support of Regulation System Compliance and Integrity requirements, MEMX will host a test of its secondary/disaster recovery facilities on Saturday, October 14, 2023. The scope […]
On Wednesday, August 30, 2023, MEMX Options released new versions of its MEMO specifications. Version 1.5 can be downloaded here. This update adds fields to the AllocationInstruction message in SBE and FIX, as well as a new value to the OrderRejectReasonCode field in FIX. For more details please see the Errata included in the specification download. […]
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July 2023
Rule 605 Disclosure of Order Execution Information